Answers

Add 7/5 and 21/80

1^st number: 1 2/5, 2^nd number: 21/80

7/5 + 21/80 is 133/80.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 5 × 16 = 80,
   7/5 = 7 × 16/5 × 16 = 112/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   21/80 = 21 × 1/80 × 1 = 21/80
4. Add the two like fractions:
   112/80 + 21/80 = 112 + 21/80 = 133/80
5. So, 7/5 + 21/80 = 133/80
   In mixed form: 153/80

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